From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:34059) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gk7sV-0006Jy-Nm for qemu-devel@nongnu.org; Thu, 17 Jan 2019 08:38:40 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gk7sU-00069r-2h for qemu-devel@nongnu.org; Thu, 17 Jan 2019 08:38:39 -0500 Received: from mail-wr1-x442.google.com ([2a00:1450:4864:20::442]:38416) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gk7sT-00067s-Pq for qemu-devel@nongnu.org; Thu, 17 Jan 2019 08:38:37 -0500 Received: by mail-wr1-x442.google.com with SMTP id v13so11057502wrw.5 for ; Thu, 17 Jan 2019 05:38:37 -0800 (PST) From: Peter Maydell Date: Thu, 17 Jan 2019 13:38:34 +0000 Message-Id: <20190117133834.7480-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH] exec.c: Use correct attrs in cpu_memory_rw_debug() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: patches@linaro.org In the softmmu version of cpu_memory_rw_debug(), we ask the CPU for the attributes to use for the virtual memory access, and we correctly use those to identify the address space index. However, we were not passing them in to the address_space_write_rom() and address_space_rw() functions. The effect of this was that a memory access from the gdbstub to a device which had behaviour that was sensitive to the memory attributes (such as some ARMv8M NVIC registers) was incorrectly always performed as if non-secure, rather than using the right security state for the CPU's current state. Fixes: https://bugs.launchpad.net/qemu/+bug/1812091 Signed-off-by: Peter Maydell --- exec.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/exec.c b/exec.c index 6e875f0640a..2f0f40b0be6 100644 --- a/exec.c +++ b/exec.c @@ -3881,12 +3881,10 @@ int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr, phys_addr += (addr & ~TARGET_PAGE_MASK); if (is_write) { address_space_write_rom(cpu->cpu_ases[asidx].as, phys_addr, - MEMTXATTRS_UNSPECIFIED, - buf, l); + attrs, buf, l); } else { address_space_rw(cpu->cpu_ases[asidx].as, phys_addr, - MEMTXATTRS_UNSPECIFIED, - buf, l, 0); + attrs, buf, l, 0); } len -= l; buf += l; -- 2.20.1